$def with (comment=None)

<div class="formElement">
    <div class="label">
        <label for="comment">$_("Please, leave a short note about what you changed:") <span class="small gray">$_("(Optional, but very useful!)")</span></label>
    </div>
    <div class="input">
        <input type="text" name="_comment" id="comment" value="$comment" style="width:900px;"/>
    </div>
</div>

<div class="cclicense">
    $:_('By saving a change to this wiki, you agree that your contribution is given freely to the world under <a href="https://creativecommons.org/publicdomain/zero/1.0/" target="_blank" title="This link to Creative Commons will open in a new window">CC0</a>. Yippee!')
</div>

<div class="formElement collapse" style="position:relative;">
    <button type="submit" class="larger" name="_save" title="$_('Save')">$_("Save")</button>
    &nbsp;
    <a href="javascript:history.go(-1);" class="small red">$_('Cancel')</a>
    $if ctx.user and (ctx.user.is_admin() or ctx.user.is_librarian()):
        <span class="adminOnly right"><button type="submit" value="$_('Delete Record')" name="_delete" title="$_('Delete Record')" id="delete">$_("Delete Record")</button></span>
    $else:
        <div class="adminDelete">$:_('<em>Please Note:</em> Only Admins can delete things. <a href="/contact" class="blue">Let us know</a> if there\'s a problem.')</div>
</div>
